baber/WOPTO huggingface dataset:
Patent GB-1388006-A (GB)
Title: Casing for holding sample tubes
IPC: B01L9/06
Filed: 1972-11-02
Abstract: 1388006 Test tube rack I C N TRACERLAB NV 2 Nov 1972 [14 Dec 1971] 50477/72 Heading B1X [Also in Division Gl] A casing for holding sample tubes 10 comprises a plurality of compartments 6 for sample tubes and defined by wall portions, at least some of the wall portions of the compartment which wall portions form an outer wall of the casing, being provided with openings 13, 14, 15 therein, and coding members 16 removably insertable into at least some of the compartments and provided with openings wherein at least one opening in a coding member is registerable with an opening in the said wall portion of the respective compartment into which it is to be inserted. As shown, the coding member is a square can having on its respective sides a hole corresponding to the upper casing hole 14, a hole corresponding to the lower casing hole 13, holes corresponding to both casing holes, and no holes at all, so that any one of four indications may be given to a scanning device.
Patent GB-1278872-A (GB)
Title: Lubricating stabilizers for chlorine-containing polymers
IPC: C08K5/57
Filed: 1970-10-23
Abstract: 1278872 Stabilizing PVC &c PFIZER Inc 23 Oct 1970 [11 Dec 1969] 50589/70 Heading C3P Chlorine-containing polymers are stabilized and lubricated with a combination of (a) 0À5- 3À0 phr. of an organotin carboxylate containing up to 12 carbons in the or each carboxylate moiety and (J) 0À3-1À5 phr. of a sodium, calcium, magnesium or aluminium salt of a C 8 -C 18 -alkyl mono-ester of maleic, fumaric, itaconic, citraconic, mesaconic or glutaconic acid. In the examples are used (a) dibutyl tin bis-(cyclohexyl maleate), bis-(methyl maleate), maleate, dilaurate, bis-(2-ethylhexyl maleate), monolaurate mono(2-ethylhexyl maleate), bis- (mono-n-octyl maleate) or the corresponding dioctyl tin compounds with (J) mono-octyl, -stearyl, lauryl, -myristyl, or -cetyl ester salts of maleic, fumaric, itaconic or citraconic acids and the specified metals. The resin is PVC, chlorinated PVC, copolymer of vinyl chloride with vinyl acetate, propylene or vinyl ether and may contain other resins as processing additives, or impact modifiers, stearic acid, wax or an organotin mercapto compound.
Patent GB-1298573-A (GB)
Title: Stirrer apparatus
Inventor: TAYLOR PERCY RONALD
IPC: B01F11/00
Filed: 1969-10-15
Abstract: 1298573 Stirrer apparatus MONSANTO CHEMICALS Ltd 29 Sept 1970 [15 Oct 1969] 50652/69 Heading B1C A slurry 11 in a vessel 10 is agitated without admitting air bubbles, by a stirrer comprising a plate 12 having apertures 14 and valve members 15 which open as the stirrer descends and closes as it it rises, there being a space between the edge of the plate and the wall of the vessel. The stirrer may be reciprocated vertically by pneumatic means and slowly enough to prevent heat generation. A scraper member 16 may be provided for when the stirrer is rotated. The valve members 15 may have a limited travel and may be discs (as shown), spheres, or poppet valves having circular apertures, or may be flap valves or hinged louvres, (Figs. 9-11, not shown) having elliptical, square or rectangular apertures. The slurry may be a refractory material in a. binding agent, and the vessel 10 may be provided with from one to four spaces, Figs. 6-8, (not shown) where a pattern for a ceramic mould may be dipped in without fouling the stirrer.
Patent GB-1534186-A (GB)
Title: Low emission combustion chamber
IPC: F23L1/00
Filed: 1975-12-12
Abstract: 1534186 Gas turbine combustion chambers UNITED TECHNOLOGIES CORP 12 Dec 1975 [18 Dec 1974] 51085/75 Heading F1L [Also in Division F4] To reduce No x  emissions from a combustion chamber, e.g. of a gas turbine engine, a pilot combustion zone is established and to the products therefrom are added a swirling flow of cooling air and then fuel, the latter thus vaporizing to form a fuel-rich mixture to which main combustion air is added to raise the oxygen content sufficiently for self-ignition to occur. In one arrangement a circumferential array of can type combustion chambers is disposed in a common annular air jacket, each combustion chamber 24 having a pilot zone 62 in which fuel from a series of nozzles 64 is completely burnt with air entering via swirl vanes 66 and deflector 63. The products leaving zone 62 are further swirled by inclined corrugations 92 which also assist mixing of swirling cooling air flowing from annular duct 90. Fuel added by nozzles 104 vaporizes to form a fuelrich mixture which is further swirled by canted corrugations 94 as it enters main combustion zone 74 to be mixed with swirling combustion air flowing from annular duct 88. Self-ignition of the mixture thus occurs when the oxygen content has been sufficiently raised. Dilution air is added via swirlers 98 from duct 96. Figures 9 to 15 (not shown) illustrate modified swirl producing arrangements at the upstream and downstream ends of the pilot combustion zone 62. These include, e.g. inclined fuel nozzles (64a, Fig. 9), hollow deflector vanes (128), Fig. 13 (not shown) having cooling air outlets (132) at their downstream edges, and inclined air injection tubes (130, 132), Fig. 14 (not shown) replacing corrugations 94. The invention is applicable to fully annular combustion chambers as well as the can type described.
Patent GB-1172070-A (GB)
Title: A process for improving the Stability of Cis-1,4-Polyisoprene Vulcanisates
IPC: C08C2/00
Filed: 1968-10-30
Abstract: 1,172,070. Polyisoprene. FARBENFABRIKEN BAYER A.G. 30 Oct., 1968 [24 Nov., 1967], No.51388/68. Heading C3P. The stability of cis-1,4-polyisoprene is improved by inactivating a catalyst-containing solution of polyisoprene in an organic solvent with a mixture comprising an aliphatic alcohol having 1 to 6 carbon atoms, a conventional stabilizer and from 0.2 to 0.7% (based on the solid polymer) of an aliphatic or cycloaliphatic secondary amine whose alkyl or cycloalkyl radicals together contain at least 10 carbon atoms. Suitable amines are methyl stearyl amine, di-2-ethylhexyl amine and dicyclohexylamine. In an example, isoprene is polymerized in n-hexane in the presence of a catalyst consisting of a mixture of TiCl 4  and Al(C 2 H 5 ) 3 , and the product mixture is treated with ethanol, N-methylstearylamine and 2,6-di-tert.-butyl-4- methylphenol, followed by steam stripping. The polymer is vulcanized and a carbon-black filler incorporated therein.
Patent GB-1412896-A (GB)
Title: Pressure container
IPC: F16K17/38
Filed: 1973-11-06
Abstract: 1412896 Valves N SUGIMURA and K SUGIMURA 6 Nov 1973 51408/73 Heading F2V [Also in Division F3] A pressure accumulator or gas bomb has an injection valve 3 connected to a pressure vessel 1 and formed with a spring-loaded valve member comprised by a fusible plug 7 within a cylindrical stem 5 with an aperture 8. A cap 21 has a temperature sensitive fuse 19 which fuses at 100 C. compared to the 120-180 C. of the plug 7. On excess temperature rise a pressure relieving path between the inside of the pressure vessel and atmosphere is thus formed via apertures 17, 8, 16 and the bore in which the fuse 19 is placed. Aperture 8 may be replaced by or supplemented with end notches or side apertures in the stem. Fluosic resin or nylon is used for the plug 7.
Patent GB-1150598-A (GB)
Title: Improvements in and relating to Eddy Current Retarders
IPC: H02K49/04
Filed: 1966-11-18
Abstract: 1,150,598. Vehicle brake arrangements. LABAVIA S.G.E. 18 Nov., 1966 [2 Dec., 1965; 12 Feb., 1966], No. 51722/66. Heading B7H. [Also in Division H2] In an eddy current retarder, e.g. for braking the independently rotatable non-driven wheels on each side of a vehicle such as a trailer, comprising a stator 1, 1a, 2, and two rotors 3, 4 mounted for rotation on respective coaxial mutually rotatable shafts 5, 6 mounted by respective bearings 9, 11, there is provided structurally separate from such bearings an axial thrust device 7 which limits relative axial movements between the shafts in the direction in which they are urged by the magnetic attraction between the rotors and stator. The shafts are mounted in further bearings 10, 12, and the bearings may be of the plain, ball, roller or needle types and in Fig. 2 are contained in grease cases (21, 22); they are mounted in a bush 8 fixed to stator support 2 connected to the vehicle chassis. In another embodiment, Fig. 3, the device comprises taper roller bearings (107, 112) adjusted to zero clearance or a prestressing and forming with the shafts 5, 6 a unit mounted as a single shaft. The two rotors alternatively may be disposed between two rows of stator electromagnets. In Fig. 4, the shafts 5, 6 are connected through trailer wheel shafts A 1 , A 2 , speed multiplier devices M 1 , M 2 , and friction brake drums T 1 , T 2 , to the wheels, not shown.
Patent GB-1408943-A (GB)
Title: Process for the production of moulded foam resin products
IPC: C08G18/65
Filed: 1972-11-10
Abstract: 1408943 Polyester foam products BAYER AG 10 Nov 1972 [13 Nov 1971] 52016/72 Heading C3R In a process for producing moulded foam resin products with solid non-cellular surfaces and a density reducing from the surfaces towards the centre by foaming a reactive mixture of a polyisocyanate and an aromatic polyamine and optionally a polyether or polyester polyol in the presence of a blowing agent in a closed mould the polyisocyanate is a prepolymer obtained from a polyisocyanate and a compound having reactive hydrogen atoms and the polyamine is an amine of the formula or a mixture thereof with amine of formulae where n is 0, 1 or 2; R<SP>1</SP>, R 1  and R 3  or C 1-7  alkyl and R<SP>11</SP>, R 2  and R 4  are H or C 1-7  alkyl. The reactive hydrogen compound in the isocyanate prepolymer may be a polyamine, polyol, polycarboxy compound or polythiol of molecular weight 500 to 500. All the examples use a 2 component procedure wherein component A comprises the diamine together with silicone stabilizer, 1 - methyl - 4 - (N,N - dimethylaminoethyl)piperazine or 1,3,5 - (N,N - dimethyl - aminopropyl) - hexahydrotriazine, and monofluorotrichloromethane and component B the isocyanate prepolymer and sometimes further monofluorotrichloromethane. The polyamines used in components A are condensates of formaldehyde with (Examples 2, 6 and 7) 2,6-diisopropyl aniline, (Examples 1 and 5) a mixture thereof with 2-isopropyl- and 2,6-diethylanilines, (Example 3) 2,6-dimethylaniline and (Example 4) 2-methyl aniline. The isocyanate prepolymers in component B are (Examples 1 to 4) a mixture of prepolymers of (i) hexamethylene - 1,6 - diisocyanate and dipropylene glycol and (ii) tolylene diisocyanate and a mixture of polypropylene glycol 1000 and poly-(propylene-ethylene(glycol 4000; (Example 5) prepolymer (i) above only; (Example 6) tolylene- 2,4-diisocyanate and a mixture of the three glycols of (i) and (ii) above; and (Example 7) tolylene-2,4-diisocyanate and a mixture of di- and tri-propylene glycols and addition compound of propylene oxide to glycerol of M.W. 2600.
Patent GB-1530418-A (GB)
Title: Electronic timepiece
IPC: G04G5/00
Filed: 1976-12-16
Abstract: 1530418 Electronic timepieces SUWA SEIKOSHA KK 16 Dec 1976 [24 Dec 1975]  52573/76 Heading G3T A digital electronic timepiece comprising an oscillator circuit 1. Fig. 1, frequency divider 2 and seconds, minutes and hours counters 3,4,5 coupled to de-coders, drivers and seven-segment type display devices in a unit 6, is provided with an inspection circuit 8 for checking that the display is correctly connected to the timekeeping circuit. The circuit 8 is operative, for a predetermined time (0À5 secs) after the power supply is switched ON and the counters and divider reset by a signal "a" from an auto clear circuit 7, to produce a signal "C" which causes energization of all those segments or electrodes not energized when the counters are reset. Fig.4 shows the reset state of the display and Fig.5 shows the test state. A control circuit 9 in response to operation of switches h, i, j, enables each counter to be stopped and drain current thereof to be measured. The circuit 9 can also be used to supply correction signals to the respective counters to correct the time indication.
Patent GB-1218558-A (GB)
Title: Apparatus for balancing a vehicle wheel
Inventor: CURRY JAMES BRUCE
IPC: G01M1/04
Filed: 1967-11-21
Abstract: 1,218,558. Testing balance. J. B. CURRY. Nov. 21, 1968 [Nov. 21, 1967], No. 52872/67. Heading G1X. Apparatus for use in the static balancing of a vehicle wheel 9 comprises a horizontal disc 16 on which the wheel 9 is symmetrically supported, the disc being suspended on a wire 18 with a ball 20 engaging a ball race 21 on the disc 16, any unbalance of the wheel being indicated by the unsymmetrical position of the wire 18 with respect to a circular aperture 27 at the top of a column 15 upstanding from and fast with the disc 16. The disc 16 is provided with radial slots 24 in which slide locating pads 23 to receive pegs 22 passing through and locating the wheel nut stud holes in the wheel 9. The slots allow the accommodation of wheels of different sizes and the pads 23 are in two parts held together by spring loaded balls in one part engaging in detents in the other. The pegs 22 have a bayonet fitting (not shown) in the upper parts of the pads 23 and are provided with spring loaded bushes engaging in the chamfered holes in the wheel to locate the wheel with respect to the disc 16. The ball race 21 is carried by the column 15, this being screwed into the disc 16. The wire 18 has an eye 19 at its upper end for connection to a suitable hook and gantry mechanism for raising the ball 20 so that the wheel may be suspended thereon. A spring-loaded platform 12 supports the disc 16 before suspension on the wire 18 a platform 8 is provided for the wheel 9. A rider (not shown) may be provided on the gantry comprising a pan to which weights may be added and this rider may be lowered on to the rim of the wheel so that the weight is transferred to the wheel to bring the wire 18 back to a central position in the aperture 27. In an alternative embodiment a disc may be provided on a rod on the wire 18 this being of the same diameter as the top of the column 15 and being located symmetrically with respect thereto when the wheel is balanced.
Patent GB-1585189-A (GB)
Title: Process for the continuous casting of steel
IPC: B22D11/11
Filed: 1977-12-23
Abstract: In the continuous casting of steel with an open casting stream between a tundish and a downstream mould (1), a multi-phase mixture of liquid inert gas and a particulate substance is introduced as a layer (7) onto the surface (5) of the molten metal in the mould. Casting powder together with the inert gas as the multi-phase mixture is applied directly to the surface of the molten metal during the coating, at a distance from the casting stream (2), via a common line (6). This distance is greater than half the diameter (8) of coating stream. The wave (9) caused by the casting stream prevents the casting powder from being swept into the liquid casting head (3). <IMAGE>
Patent GB-1166309-A (GB)
Title: Process for Stabilizing Macromolecular Polyacetals
IPC: C08L59/02
Filed: 1967-11-27
Abstract: 1,166,309. Oxymethylene polymer-N-vinyllactam polymer compositions. FARBWERKE HOECHST A.G. 27 Nov., 1967 [25 Nov., 1966], No.53830/67. Heading C3P. Oxymethylene polymers are stabilized with 0.05 to 10% of a polymer of a compound of formula (an N-vinyl-azetidinone or N-vinylpropiolactam) in which R 1 , R 2 , R 3  and R 4  are hydrogen, straight or branched chain aliphatic radical of 1 to 12 carbon atoms or an alicyclic or aromatic radical. Conventional bisphenols and acetophenone, benzophenone or triazine derivatives may also be incorporated. The oxymethylene polymers may be acetylated formaldehyde homopolymers or trioxan copolymers. Comparative examples with other poly-N-vinyl lactams are included. The N-vinyl azetidinone polymer may be a homopolymer or a copolymer, particularly with N-vinyl-N-methyl formamide.
Patent GB-1485149-A (GB)
Title: Ophthalmic inserts
IPC: A61K9/00
Filed: 1974-12-12
Abstract: The ophthalmic inserts containing hydroxypropylcellulose as carrier material are particularly effective because they dissolve slowly but completely in water so that they can be used for the production of suitable compositions for prolonged treatment of the eye with, at the same time, a reduction in the dosage frequency.
Patent GB-1386140-A (GB)
Title: Test composition and device
IPC: G01N33/493
Filed: 1972-11-22
Abstract: 1386140 Determination of ascorbic acid MILES LABORATORIES Inc 22 Nov 1972 [28 Feb 1972] 53975/72 Heading G1B A test composition to determine the presence and concentration of ascorbic acid in fluids comprises a solution containing a water-soluble phosphomolybdate salt and as stabilizing agent a water-soluble nitrate. A preferred composition is a mixture of sodium 2-phospho-18-molybdate and sodium phospho-12-molybdate, and sodium nitrate, dissolved in water. The solution may be used to impregnate a carrier e.g. filter-paper, wood or cloth. When determining ascorbic acid in urine, malonic acid may be included in the composition to suppress urate interference.
Patent GB-1292308-A (GB)
Title: Apparatus for inspecting containers for leaks
Inventor: CVACHO DANIEL STEVE
IPC: G01M3/38
Filed: 1969-11-12
Abstract: 1292308 Inspecting containers photoelectrically REYNOLDS METALS CO 12 Nov 1969 [12 Nov 1968] 55447/69 Addition to 1204274 Heading G1A [Also in Division B8] In an apparatus for inspecting containers, such as cans 26 with one open end, the cans are continuously moved past a photo-detector 31 by a conveyor 10 and are illuminated by a light source 100, the detector being arranged to collect any light passing through an opening in the can wall to operate a mechanism to reject such a defective can. As each can arrives at an inspection station 33 it is pressed against an aperture in a plate 86 rotating at the same speed as the can-carrying cradles, so that the only light falling on the detector is that which has passed through a hole in the can and the aperture (90), Fig. 13 (not shown). Any "defect" signal is delayed in the electrical device 40 until the defective can arrives in the position 41 in the star wheel 55, whence it is rejected along the chute 42, fault-free cans not being ejected until arrival at the chute 43. The light source comprises a plurality of elongated discharge tubes 100 arranged to illuminate the entire outer surface of the can. A shielding device is provided, Fig. 6 (not shown), so that when there is no can and corresponding opening 90 aligned with the photo-detector, light cannot reach the detector through a subsequently arriving opening over which a can has not yet been tightly urged. The detector may be arranged to be operative only when a can arrives at the inspection station 33.
Patent GB-1148219-A (GB)
Title: Heat transfer oils
Inventor: JENSE WILLEM FREDERIK
IPC: C10G45/02
Filed: 1967-12-11
Abstract: 1,148,219. Heat transfer oils. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 11 Dec., 1967, No. 56194/67. Headings C4X and C5E. A process for heat transfer comprises using as a heat transfer oil a hydrotreated cracked mineral oil fraction prepared by hydrotreating a cracked mineral oil fraction and optionally dewaxing the fraction before or after the hydrotreating. The hydrotreating may be over cobalt oxide and molybdenum oxide on alumina. The dewaxing may be by the use of urea and dichloromethane or dichloroethane.
Patent GB-562050-A (GB)
IPC: C10K1/02
Abstract: 562,050. Centrifugal separators. KALLE, K. T. Feb. 4, 1943, No. 1880. [Class 23] The velocity of the gases exhausted from an engine driven by gas from a gas generator, is used to remove carbon particles and the like from a cyclone separator. The exhaust pipe 1 of the engine leads to a silencer 2 and causes a pressure rise in a pipe 4 leading to a chamber 5. Gas from a gas generator (which may be of the charcoal type) enters the separator 6 through a pipe 7 and cleaned gas leaves through a pipe 7x. A discharge pipe 8 for the carbon particles &c. leads to the atmosphere or back to the generator to which part of the combustion gases may be returned with the suction air. Exhaust gases from the pipe 4 pass away through ports 12. The gap 17, through which carbon particles &c. enter from the separator, is variable in accordance with the pressure in the chamber 5 which acts on a spring-pressed piston 15. When starting up the gas generator, the gap 17 is held closed.
Patent GB-1356320-A (GB)
Title: Reversible shield and or seal element for a bearing or like ring
IPC: F16C33/80
Filed: 1971-12-07
Abstract: 1356320 Seals for bearings TEXTRON Inc 7 Dec 1971 [16 Dec 1970] 56793/71 Heading F2B A reversible seal element for a bearing comprises an annular disc having radially outer and inner annular portions of elastomeric material, the inner portion being provided at its bore with an axially-directed continuous seal lip and the outer annular portion having a circumferential groove which is vented axially in opposite directions by angularly-spaced channels 40, 41. The seal element may be mounted as a shield as shown in Fig. 2 in clearance relation with the surface 21 of the race ring 10 or it may be reversed as shown in Fig. 1 so that the seal lip makes rubbing contact. Identification of the seal element may be facilitated by use of lugs 43, 44, colour, or by the shape of the vent channels. The seal element may be reversible to provide a seal and a shield as shown, two differently loaded seals, or two shields.
Patent GB-1218775-A (GB)
Title: Linear scale instrument with variable speed indicator tape drive
IPC: G01D13/06
Filed: 1968-12-03
Abstract: 1,218,775. Indicating-apparatus. McGRAWEDISON CO. Dec. 3, 1968 [Jan. 22, 1968], No. 57416/68. Heading G1J. Indicating-apparatus has an input shaft 11 angularly displaced in accordance with a variable to move a tape 14 along a scale 26, expanded over a portion 27 compared with a portion 34, by means of variable ratio drive mechanism 10 which changes automatically from one drive ratio to another as an indicator mark 29 on the tape 14 moves from one portion of the scale 26 to the other, the mechanism 10 comprising a drum 12 secured to the shaft 11, one end of the tape 14 being attached to the drum 12 and the other end to a tensioning spring, and the mechanism 10 also comprising an outer drum 13 with one end of its slot 28 urged against a stop pin 19 by a torsion spring 20 stretched between the pin 19 a drive pin 22 on the drum 13. The tape 14 passes out of an opening 15 in the drum 13 and is guided in a direction tangential thereto by an idler roller 18. After the tape 14 has been wrapped round nine-tenths of the drum 12 a finger 21 thereof engages the pin 22 and drives the drum 13 so that in wrapping round its larger periphery the speed of the tape increases. The shaft 11 may be servo-driven in correlation with the position of a potentiometer to represent a quantitative measurement.